A simple random sample of size n= 200 drivers were asked if they drive a car manufactured in a certain country. Of the 200 drivers surveyed, 110 responded that they did. Determine if more than half of all drivers drive a car made in this country at the a = 0.05 level of significance. Complete parts (a) through (d). (a) Determine the null and alternative hypotheses. Ho: V0.5 H,: V0.5 (b) Calculate the P-value. P-value = (Round to three decimal places as needed.) (c) State the conclusion for the test. Choose the correct answer below. O A. Reject H, because the P-value is less than the a = 0.05 level of significance. O B. Do not reject H, because the P-value is greater than the a = 0.05 level of significance. OC. Reject H, because the P-value is greater than the a= 0.05 level of significance. O D. Do not reject H, because the P-value is less than the a = 0.05 level of significance. (d) State the conclusion in context of the problem. There V sufficient evidence at the a= 0.05 level of significance to conclude that more than half of all drivers drive a car made in this country.

A simple random sample of size n= 200 drivers were asked if they drive a car manufactured in a certain country. Of the 200 drivers surveyed, 110 responded that they did. Determine if more than half of all drivers drive a car made in this country at the a = 0.05 level of significance. Complete parts (a) through (d). (a) Determine the null and alternative hypotheses. Ho: V0.5 H,: V0.5 (b) Calculate the P-value. P-value = (Round to three decimal places as needed.) (c) State the conclusion for the test. Choose the correct answer below. O A. Reject H, because the P-value is less than the a = 0.05 level of significance. O B. Do not reject H, because the P-value is greater than the a = 0.05 level of significance. OC. Reject H, because the P-value is greater than the a= 0.05 level of significance. O D. Do not reject H, because the P-value is less than the a = 0.05 level of significance. (d) State the conclusion in context of the problem. There V sufficient evidence at the a= 0.05 level of significance to conclude that more than half of all drivers drive a car made in this country.

Name: A simple random sample of size n= 200 drivers were asked if they driv
Uploaded: 2024-03-20T07:07:00.000Z
Channel: Bartleby
Description: A simple random sample of size n= 200 drivers were asked if they drive a car manufactured in a certain country. Of the 200 drivers surveyed, 110 responded that theydid. Determine if more than half of all drivers drive a car made in this country at t

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

See similar textbooks

Similar questions

In a random sample, 12 of 14 industrial accidents weredue to unsafe working conditions. Use the 0.01 level ofsignificance to test the null hypothesis θ = 0.40 againstthe alternative hypothesis θ Z 0.40.
A law enforcement agent believes that at least 84% of the drivers stopped for speeding on Saturday nights are under the influence of alcohol. A sample of 84 drivers who were stopped for speeding on a Saturday night was taken. Seventy-five percent of the drivers in the sample were under the influence of alcohol. (a) State the null and alternative hypotheses. (Enter != for ≠ as needed.) H0: Ha: (b) Compute the test statistic. (c) Using the p-value approach, test the hypotheses at the 0.05 level of significance. Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. Do not reject H0. There is insufficient evidence to conclude that less than 84% of the drivers stopped for speeding on Saturday nights are under the influence of alcohol.Do not reject H0. There is sufficient evidence to conclude that less than 84% of the drivers stopped for speeding on Saturday nights are under the influence of alcohol. Reject H0. There…
The average annual miles driven per vehicle in the United States is 11.1 thousand miles, with σ ≈ 600 miles. Suppose that a random sample of 36 vehicles owned by residents of Chicago showed that the average mileage driven last year was 10.9 thousand miles. Does this indicate that the average miles driven per vehicle in Chicago is different from (higher or lower than) the national average? Use a 0.05 level of significance. State the null and alternate hypotheses. a) H0: p = 11.1; H1: p > 11.1 b) H0: p = 11.1; H1: p < 11.1 c) H0: μ = 11.1; H1: μ > 11.1 d) H0: μ = 11.1; H1: μ ≠ 11.1 e) H0: p = 11.1; H1: p ≠ 11.1 f) H0: μ = 11.1; H1: μ < 11.1 (b) What sampling distribution will you use? What assumptions are you making? a) The standard normal, since we assume that x has a normal distribution with known σ. b) The Student's t, since we assume that x has a normal distribution with unknown σ. c) The Student's t, since we assume that x has a normal distribution with known σ.…
The worldwide market share for a web browser was 20.1% in a recent month. Suppose that a sample of 200 random students at a certain university finds that 50 use the browser. At the 0.01 level of significance, is there evidence that the market share for the web browser at the university is greater than the worldwide market share of 20.1%? Determine the null and alternative hypotheses. A.H0: P≥0.201; H1: P<0.201 B.H0: P=0.201; H1: P≠0.201 C. H0: P≠0.201; H1: P=0.201 D. H0: P≤0.201; H1: P>0.201 ZStat=__ (Round to two decimal places) p-value=____ __A__ the null hypothesis. There is __B__ evidence to conclude that the market share at teh university is __C__ the worldwide market share of 20.1%. A: Reject or do not reject B: insufficient or sufficient C: at least, less than, equal to, at most, not equal to, greater than
The NAEP considers that a national average of 283 is an acceptable performance. Using α = .05, run a two-tail t-test for one sample to test Ho: µ=283 for the 2019 scores. Report the t-obt, df, and p-values. Would you reject the null hypothesis that the 2019 scores come from a population with average 283? If this is the case, does it come from a population from larger or smaller average?
The manufacturer of a new antidepressant claims that, among all people with depression who use the drug, the proportion p of people who find relief from depression is at least 65%. A random sample of 170 patients who use this new drug is selected, and 100 of them find relief from depression. Based on these data, can we reject the manufacturer's claim at the 0.1 level of significance? State the null hypothesis H0 and the alternative hypothesis H1 Find the z test value Find the p-value Can we reject the claim that the proportion of people who find relief from depression using the new antidepressant is at least 65%? Yes or No?
Find the Type II error given that the null hypothesis, H0, is: there are no more than 15% of structures in the county were built without permits.And, the alternative hypothesis, Ha, is: a building inspector claims that more than 15% of structures in the county were built without permits. Select the correct answer below: The building inspector concludes that more than 15% of the structures in the county were built without permits when, in fact, no more than 15% of the structures were built without permits. The building inspector concludes that more than 15% of the structures in the county were built without permits when, in fact, more than 15% of the structures were built without permits. The building inspector cannot conclude that more than 15% of the structures in the county were built without permits when, in fact, no more than 15% of the structures were built without permits. The building inspector cannot conclude that more than 15% of the structures in the county were…
If, in a one-tail hypothesis test where H0 is only rejected in the upper tail, the p-value=0.6792 and ZSTAT=−0.47,what is the statistical decision if the null hypothesis is tested at the 0.07 level of significance? What is the statistical decision? Since the p-value is Less than or Greater than or equal to a= , Reject , Do not reject H0.